The first thing you need to understand is that the bookmaker charges an implicit commission for closing early. The amount they offer will always be less than the actual probability of your bet winning at that moment. In short, we accept an unfair payout in exchange for eliminating risk.
The strategies I would recommend are:
1- You bet on a team, they're winning, but their best player gets sent off and the opposing team is laying siege to their penalty area.
2- If you only have a few minutes left and the profit is already 80% or 90% of the total prize, sometimes it's not worth worrying about that remaining 10%.
3- Don't act out of nervousness. If you do this systematically, you'll lose money in the long run.
A good exercise is to note down how much you would have earned if you hadn't cashed out for a month. If the figure is much higher than your actual earnings, you're being too conservative.
But even with all this, there will still be absolutely no guarantee that you will always make money from your bettings on sports, imploring and devising a strategy around cash-outs will not actually work in the long term because (I dont know about other gamblers) I personally have discovered that casinos are always monitoring account behaviors towards games such account plays, if the casino notices that you are the type that is always chasing for cashout opportunities so that you could accept a cashout that is anything above your the amount you staked on the bet and run away, sooner than later, the casino will either stop offering you profitable cashouts or will stop offering cashouts at all, lets just say that can only offer you a cashout opportunity they know you won't accept..
We all should know what casinos are in this system to make we much money as they can, gamblers can't cheat them since they the ones looking at the backend screen and monitoring every thing happening, they have Ai that monitor and keeps accurate activity of all the account registered and active on the casino, this is why in every strategy we come up, luck is always the one that has the final say.